//Define the join to the external table
RdbJoin j = exttable.createRdbJoin(sf.name);
for (Iterator fkColIt = sf.join.columns.iterator(); fkColIt
.hasNext();) {
SpeedoJoinColumn jc = (SpeedoJoinColumn) fkColIt.next();
j.addJoinColumnNames(jc.targetColumn, jc.column.name);
}
// map the name def over pk field of the referenced class
if (tnd.isFieldName()) {
RdbPrimitiveElementMapping pem = (RdbPrimitiveElementMapping) trcm
.getPrimitiveElementMapping(tnd.getFieldName(), true);